Journal
JOURNAL OF POWER SOURCES
Volume 360, Issue -, Pages 319-323Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2017.06.014
Keywords
High-voltage; Na4NiTeO6; Cathode material; Na-ion batteries
Funding
- National Natural Science Foundation of China [51602099, 51502102, 51361130151]
- PCSIRT (Program for Changjiang Scholars and Innovative Research Team in University) [IRT14R18]
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We report a high-voltage Na4NiTeO6 cathode material for Na-ion batteries. It delivers 111 mAh g(-1) at 0.1 C with 87% contribution from the inductive effect at the voltage beyond 3.5 V. With addition of fluoroethylene carbonate, stable fluorine-containing solid electrode interface is formed, which significantly improve its cyclic performance. Our results provide insights into designing sodium layered cathode materials with high voltage, which will benefit for the development of high energy Na-ion batteries. (C) 2017 Elsevier B.V. All rights reserved.
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